.button {
    display: block;
    position: relative;
    background: #00B16A;
    color: #fff;
    width: 160px;
    height: 50px;
    line-height: 50px;
    text-align: center;
    font-family: 'Ubuntu', sans-serif;
    font-size: 15px;
    font-weight: bold;
    text-decoration: none;
    margin: 50px auto 0;
    border-radius: 2px;
    overflow: hidden;
    -webkit-transition: all 0.15s ease-in;
    transition: all 0.15s ease-in;
}
.button:before {
    content: ' ';
    position: absolute;
    background: #fff;
    width: 25px;
    height: 50px;
    top: 0;
    left: -45px;
    opacity: 0.3;
    -webkit-transition: all 0.25s ease-out;
    transition: all 0.25s ease-out;
    -webkit-transform: skewX(-25deg);
    transform: skewX(-25deg);
}
.button:hover {
    background: #26C281;
}
.button:hover:before {
    width: 45px;
    left: 205px;
}